1. ECOLOGICAL OR HISTORICAL BIOGEOGRAPHY OF CALCAREOUS FENS? DIFFERENCES AND SIMILARITIES BETWEEN THE WESTERN AND EASTERN CARPATHIANS IN THE EUROPEAN CONTEXT. Authors: MICHAL HÁJEK, PETRA HÁJKOVÁ, DANIEL DÍTĚ, IRINA GOIA, VERONIKA HORSÁKOVÁ, MICHAL HORSÁK, TOMÁŠ PETERKA.2. VEGETATION VARIABILITY OF CALCAREOUS FENS IN THE EASTERN CARPATHIANS. Authors: PETRA HÁJKOVÁ, DANIEL DÍTĚ, IRINA GOIA, MICHAL HÁJEK.